Answer to Question #311059 in Electric Circuits for abdi

Question #311059

A typical incandescent bulb has an efficiency of about 10%. What current is needed for a bulb with a resistance of (1.5×10^2) Ω to output power of 6.0 W?

Expert's answer

Solution;

$P=I^2R$

$6=I^2(1.5×10^2)$

$I^2=0.4$

$I=0.6324A$

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